{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-12T11:57:48.469","vulnerabilities":[{"cve":{"id":"CVE-2024-49854","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-10-21T13:15:06.203","lastModified":"2025-11-03T23:16:25.577","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock, bfq: fix uaf for accessing waker_bfqq after splitting\n\nAfter commit 42c306ed7233 (\"block, bfq: don't break merge chain in\nbfq_split_bfqq()\"), if the current procress is the last holder of bfqq,\nthe bfqq can be freed after bfq_split_bfqq(). Hence recored the bfqq and\nthen access bfqq->waker_bfqq may trigger UAF. What's more, the waker_bfqq\nmay in the merge chain of bfqq, hence just recored waker_bfqq is still\nnot safe.\n\nFix the problem by adding a helper bfq_waker_bfqq() to check if\nbfqq->waker_bfqq is in the merge chain, and current procress is the only\nholder."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloqueo, bfq: arregle uaf por acceder waker_bfqq despues de separar Después de el commit 42c306ed7233 (\"block, bfq: don't break merge chain in bfq_split_bfqq()\"), si el proceso actual es el último contenedor de bfqq, el bfqq se puede liberar después de bfq_split_bfqq(). Por lo tanto, grabar el bfqq y luego acceder a bfqq->waker_bfqq puede activar UAF. Además, waker_bfqq puede estar en la cadena de fusión de bfqq, por lo tanto, grabar solo waker_bfqq sigue sin ser seguro. Solucione el problema añadiendo un ayudante bfq_waker_bfqq() para comprobar si bfqq->waker_bfqq está en la cadena de fusión y el proceso actual es el único contenedor."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.227","versionEndExcluding":"5.15.168","matchCriteriaId":"A18D7AFF-3C9E-46FF-B2A9-3CEB860CD094"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.113","matchCriteriaId":"D01BD22E-ACD1-4618-9D01-6116570BE1EE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.54","matchCriteriaId":"D448821D-C085-4CAF-88FA-2DDE7BE21976"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.10.13","matchCriteriaId":"CE94BB8D-B0AB-4563-9ED7-A12122B56EBE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.11.2","matchCriteriaId":"AB755D26-97F4-43B6-8604-CD076811E181"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0780451f03bf518bc032a7c584de8f92e2d39d7f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/0b8bda0ff17156cd3f60944527c9d8c9f99f1583","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/1ba0403ac6447f2d63914fb760c44a3b19c44eaf","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/63a07379fdb6c72450cb05294461c6016b8b7726","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/cae58d19121a70329cf971359e2518c93fec04fe","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/de0456460f2abf921e356ed2bd8da87a376680bd","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}